Newer
Older
//steven marx: generic slider introduced version 0.7.02
#include "genericslider.H"
static char *sldtypetitles[] = {"alpha", "fov", "censize", "chromarange", "focallength", "lblminpix", "labelsize", "polysides", "polysize", "slum"};
static char sidtitles[NUMSLD][30];
static float minrg[NUMSLD][2], maxrg[NUMSLD][2], steprg[NUMSLD][2]; //generic slider's min, max, step, by [slider type][log/linear][data group]
static int loglinsld[NUMSLD]; //toggle = 1 always log = 2 always linear =3 by slider
static int loglinstate[NUMSLD]; //0 = off 1 = on by slider
void pp_sldtype_init(Fl_Menu_Button * m) {
m->add("&alpha|&fov|&censize|c&hromarange|&focallength|labelminpi&xels|labelsi&ze|&polysides|pol&ysize|&slum");
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
for(int i = m->size(); --i >= 0; )
(((Fl_Menu_Item *)(m->menu()))[i]).labelcolor( m->labelcolor() );
}
void pp_sldtype_cb(Fl_Menu_Button* m, void *) {
if(m->value() == SLUM) {
ppui.genericslider->hide();
ppui.slum->show();
ppui.linlog->value(0);
ppui.linlog->label("log");
ppui.slidergroup->redraw();
m->label(sldtypetitles[m->value()]);
ppui.view->redraw();
gensliderchg = 0;
return;
}
genericslider_setparam(); //re-initialize slider
m->label(sldtypetitles[m->value()]); //change the lable under the menu to reflect chosen menu itme
ppui.slum->hide();
ppui.genericslider->show();
if(Fl::event_button() == 2 || Fl::event_button() == 3) { //first draft of code to support use of dialog box to change min, max, or step parameters
int x = ppui.mainwin->x();
int y = ppui.mainwin->y();
int w = ppui.mainwin->w();
int h = ppui.mainwin->h();
static char wtitle[50];
sprintf(wtitle, "%s slider parameters", sldtypetitles[m->value()]);
if((w/2) > 300 )
w = 600;
if((h/2) > 300 )
h = 600;
Fl_Window dialg(x,y, w/2+ 5, h/3, wtitle); //put the dialog to the left of the sliders
Fl_Float_Input minrange(10, 7, w/4, 25, "minimum");
Fl_Float_Input maxrange(10, 57, w/4, 25, "maximum");
Fl_Float_Input steprange(10,107,w/4, 25, "step");
Fl_Button b(w/2-65, 7, 60, 30, "OK");
Fl_Button c(w/2-65, 45, 60, 30, "Cancel");
minrange.labelsize(12);
maxrange.labelsize(12);
steprange.labelsize(12);
minrange.align( FL_ALIGN_BOTTOM );
maxrange.align( FL_ALIGN_BOTTOM );
steprange.align(FL_ALIGN_BOTTOM);
//now we supply the min, max, and step values to the respective input widgets
char buf[40];
sprintf(buf, "%g", minrg[m->value()][1]);
minrange.value(buf);
sprintf(buf, "%g", maxrg[m->value()][1]);
maxrange.value(buf);
sprintf(buf, "%g", steprg[m->value()][1]);
steprange.value(buf);
steprange.tooltip("The number of steps for the log slider = number of steps for the linear slider; therefore their step sizes are not equal");
minrange.tooltip("Both log and linear sliders output the same value. Both slider types have the same minimum and maximum range.");
maxrange.tooltip("Both log and linear sliders output the same value. Both slider types have the same minimum and maximum range.");
dialg.add(b);
dialg.add(c);
dialg.add(minrange);
dialg.add(maxrange);
dialg.add(steprange);
dialg.set_modal();
dialg.show();
b.value(0);
c.value(0);
while(1) {
if(!dialg.visible()) {
c.value(1); //software simulated user cancel
break; //dialog was closed so lets exit this code block
}
Fl::check();
if(b.value() == 1 || c.value() == 1) {
if( (atof(steprange.value()) <= 0) && (b.value() == 1) ) {
fl_alert("step size must be > 0");
continue;
}
//first we check that values are within bounds for the slider type. so far we only check out FOV
int mx = m->value();
int loop = 0;
switch(mx) {
case FOV:
if(atof(minrange.value()) <= 0 || atof(maxrange.value()) >= 179.45) {
fl_alert("the min for FOV is <= 0 or the max >= 179.45 please correct.");
loop = 1;
break;
}
default:
break;
}
if(loop == 1)
continue;
//end of check on values within bounds
break;
}
}//end of while(1)
if(c.value() == 0) {
int answ1 = 1;
int answ2 = 1;
if( atof(minrange.value()) >= atof(maxrange.value()) )
answ1 = fl_ask("The minimum is greater than or equal to maximum. is this what you want ?");
double rx = fabs(atof(minrange.value()) - atof(maxrange.value()) );
if( ( rx/atof(steprange.value())) < 10)
answ2 = fl_ask("The step size is large compared to the range. is this what you wnat ?");
if(!answ1 || !answ2) {
fl_alert("Please make your correction(s).");
while(1) {
Fl::check();
if(b.value() == 1 || c.value() == 1)
break;
}
}
if(c.value() == 0) {
int mx = m->value();
// now we update the linear slider with dialog values
minrg[mx][1] = atof(minrange.value());
maxrg[mx][1] = atof(maxrange.value());
steprg[mx][1] = atof(steprange.value());
// next we synchronize the log variant with the linear
minrg[mx][0] = (minrg[mx][1] < .001) ? -3 : log10(minrg[mx][1]);
maxrg[mx][0] = log10(maxrg[mx][1]);
// we set the step size for log mode such that the number of steps over the range = the number of steps in the linear mode
double numsteps = fabs((maxrg[mx][1] - minrg[mx][1])/steprg[mx][1]);
if(numsteps == 0)
numsteps = 1; //don't want to divide by zero in the log step size calculation
steprg[mx][0] = fabs((maxrg[mx][0] - minrg[mx][0]))/numsteps;
//printf("linear: min = %g max = %g step %g\n", minrg[mx][1], maxrg[mx][1], steprg[mx][1]); //debug use only
//printf("log : min = %g max = %g step %g\n", minrg[mx][0], maxrg[mx][0], steprg[mx][0]); //debug use only
//fflush(stdout); //debug use only
}
}
} // end of first draft of code to support use of dialog box to change min, max, or step generic slider parameters
genericslider_setparam(); //re-initialize slider
ppui.slum->hide();
m->label(sldtypetitles[m->value()]);
ppui.view->redraw();
gensliderchg = 0;
}
void pp_linlog_cb(Fl_Button* o, void *) {
int menunum;
menunum = ppui.sldtype->value();
if(ppui.slum->visible() == 1) {
o->value(0); //slum slider is log never linear
o->label("log");
ppui.slidergroup->redraw();
return;
}
if(o->value() == 1 && loglinsld[menunum] == 2) { //always log so cannot get to 1 = linear state
o->value(0); //reset to log state
o->label("log");
gensliderchg = 0;
genericslider_setparam();
return;
}
if(o->value() == 0 && loglinsld[menunum] == 3) { //always linear so cannot get to 0 = log state
o->value(1); //reset to linear state
o->label("lin");
gensliderchg = 0;
genericslider_setparam();
return;
}
if(loglinsld[menunum] == 1) { //this slider can be toggled between log and linear
if( o->value() == 1) {
o->label("lin");
loglinstate[menunum] = 1;
}
else {
o->label("log");
loglinstate[menunum] = 0;
}
gensliderchg = 0;
genericslider_setparam();
return;
}
}
void reset_loglin(int menunum) {
if(loglinstate[menunum] != ppui.linlog->value()) {
if( loglinstate[menunum] ) {
ppui.linlog->value(1);
ppui.linlog->label("lin");
}
else {
ppui.linlog->value(0);
ppui.linlog->label("log");
}
}
}
void genericslider_initparam() {
//sets slider ranges, stepsize, and allowable linear and log types
minrg[ALPHA][1] = 0.0;
maxrg[ALPHA][1] = 1.0;
steprg[ALPHA][1] = .01;
minrg[FOV][1] = 0.00001; //fov must be > 0
maxrg[FOV][1] = 179.449; //fov must be < 179.45
steprg[FOV][1] = .1;
minrg[CENSIZE][0] = -3;
maxrg[CENSIZE][0] = log10(10000);
steprg[CENSIZE][0] = .10;
minrg[CENSIZE][1] = 0.0;
maxrg[CENSIZE][1] = 10000.0;
steprg[CENSIZE][1] = .10;
minrg[FOCALLEN][0] = -3;
maxrg[FOCALLEN][0] = 5;
steprg[FOCALLEN][0] = .1;
minrg[FOCALLEN][1] = 1;
maxrg[FOCALLEN][1] = 1000;
steprg[FOCALLEN][1] = .1;
minrg[CHROMADEPTHRANGE][0] = -1;
maxrg[CHROMADEPTHRANGE][0] = 5;
steprg[CHROMADEPTHRANGE][0] = .01;
minrg[CHROMADEPTHRANGE][1] = .1;
maxrg[CHROMADEPTHRANGE][1] = 1000;
steprg[CHROMADEPTHRANGE][1] = .1;
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
minrg[LABELMINPIXELS][1] = 0;
maxrg[LABELMINPIXELS][1] = 20;
steprg[LABELMINPIXELS][1] = 1;
minrg[LABELSIZE][0] = -3;
maxrg[LABELSIZE][0] = log10(1000);
steprg[LABELSIZE][0] = .01;
minrg[LABELSIZE][1] = 0.01;
maxrg[LABELSIZE][1] = 1000.0;
steprg[LABELSIZE][1] = .01;
minrg[POLYSIDES][1] = 3;
maxrg[POLYSIDES][1] = 16;
steprg[POLYSIDES][1] = 1;
minrg[POLYSIZE][0] = -3;
maxrg[POLYSIZE][0] = log10(10);
steprg[POLYSIZE][0] = .01;
minrg[POLYSIZE][1] = 0;
maxrg[POLYSIZE][1] = 10;
steprg[POLYSIZE][1] = .01;
for(int i = 0; i < NUMSLD; i++) {
//loglinsld[i] : toggle == 1 or always log == 2 or always linear == 3
if(i == ALPHA)
loglinsld[i] = 3; //alpha slider always linear
else if(i == FOV)
loglinsld[i] = 3; //fov slider always linear
else if(i == LABELMINPIXELS)
loglinsld[i] = 3; //labelminpixels slider always linear
else if(i == POLYSIDES)
loglinsld[i] = 3; //polysides slider always linear
else
loglinsld[i] = 1; //default toggle type
if(loglinsld[i] == 1 || loglinsld[i] == 2)
loglinstate[i] = 0;
else
loglinstate[i] = 1;
}
}
void slider_update(float* p) {
float v;
Fl_Value_Slider* o = ppui.genericslider;
int menunum;
menunum = ppui.sldtype->value();
int log_lin = ppui.linlog->value();
if(gensliderchg == 1) {
v = o->value();
if(log_lin == 1)
*p = o->value();
else
*p = pow(10., o->value());
}
else {
if(log_lin == 1)
o->value(*p);
else {
if(*p <= 0)
o->value(-3);
else {
v = log10(*p);
o->value(v);
}
}
}
}
void slider_update(int* p) {
float v;
Fl_Value_Slider* o = ppui.genericslider;
int menunum;
menunum = ppui.sldtype->value();
int log_lin = ppui.linlog->value();
if(gensliderchg == 1) {
v = o->value();
if(log_lin == 1)
*p = (int)(o->value());
else
*p = (int)(pow(10., o->value()));
}
else {
if(log_lin == 1)
o->value(*p);
else {
if(*p <= 0)
o->value(-3);
else {
v = log10(*p);
o->value(v);
}
}
}
}
static void maketitle( char *str, int menunum, int linear, Fl_Value_Slider *o )
{
char *p = str;
if(menunum != CENSIZE && menunum != FOCALLEN)
p += sprintf(str, "[%.8s] ", parti_get_alias(ppui.st));
p += sprintf(p, linear ? "%s" : "log(%s)", sldtypetitles[menunum]);
if(o)
sprintf(p, " %.4g", linear ? o->value() : pow(10, o->value()));
}
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
void genericslider_setparam() {
Fl_Value_Slider* o = ppui.genericslider;
static int menunum;
menunum = ppui.sldtype->value();
if( (menunum == SLUM) || (menunum < 0) || (menunum >= NUMSLD) || (menunum > ppui.sldtype->size()) )
return;
struct stuff *st = ppui.st;
reset_loglin(menunum);
int log_lin = ppui.linlog->value();
float *p;
int *ip;
float temp;
char buf[40];
switch (menunum) {
case ALPHA:
p = &(ppui.st->alpha);
slider_update(p);
break;
case CENSIZE:
p = &(ppui.censize);
slider_update(p);
break;
case CHROMADEPTHRANGE:
p = &(ppui.st->chromaslidelength);
slider_update(p);
break;
case FOCALLEN:
{
float tfocallen = ppui.view->focallen();
float oldfocallen = tfocallen;
p = &tfocallen;
slider_update(p);
if(tfocallen != oldfocallen)
ppui.view->focallen( tfocallen );
}
break;
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
case FOV:
temp = parti_fovy(NULL);
p = &temp;
slider_update(p);
if(gensliderchg == 1) {
sprintf(buf, "%f", *p);
parti_fovy(buf);
}
break;
case LABELMINPIXELS:
p = &(ppui.st->textmin);
slider_update(p);
break;
case LABELSIZE:
p = &(ppui.st->textsize);
slider_update(p);
break;
case POLYSIDES:
ip = &(ppui.st->npolygon);
slider_update(ip);
break;
case POLYSIZE:
p = &(ppui.st->polysize);
slider_update(p);
break;
case SLUM:
return; //we don't handle slum slider with the generic slider
default:
return;
}//end of switch
o->range(minrg[menunum][log_lin], maxrg[menunum][log_lin]);
o->step(steprg[menunum][log_lin]);
maketitle( sidtitles[menunum], menunum, log_lin, o );
Fl::visible_focus(1); //marx: version 0.7.02 - don't use the pre fltk-1.1.x old style of only text widgets to get keyboard focus
o->take_focus(); //so we can use the arrow keys to fine tune the slider
//========== start of code for dynamic label =============================
//idea here is dynamically update label on discrete actions NOT on continuous motion. this will prevent flicker and still provide status info !
static bool firstdrag = true;
if( Fl::event_is_click()) {
firstdrag = true;
}
else if( Fl::event_key(FL_Enter)) {
firstdrag = true;
}
else {
//must be mouse drag or keyboard arrow key drag since slider changed value and it wasn't keyboard entered command update or mouse click on slider
maketitle( sidtitles[menunum], menunum, log_lin, o );
}
if(firstdrag) {
o->label(sidtitles[menunum]);
Fl::remove_timeout(gensldtimeout);
Fl::add_timeout(.4, gensldtimeout, o ); //we do not want to draw too many labels when dragging
}
//============= /end of code for dynamic label ===============================
ppui.view->redraw();
Fl::visible_focus(0); //marx: version 0.7.02 - revert to the pre fltk-1.1.x old style of only text widgets to get keyboard focus
}
void gensldtimeout(void* widg) {
Fl_Value_Slider* o = (Fl_Value_Slider*)widg;
int menunum = ppui.sldtype->value();
int log_lin = ppui.linlog->value();
struct stuff *st = ppui.st;
maketitle( sidtitles[menunum], menunum, log_lin, o );
o->label(sidtitles[menunum]);